title: Influence of water storage time on the bond strength of etch-and-rinse and self-etching adhesive systems.
abstract: The purpose of this study was to evaluate comparatively the shear bond strength (SBS) of etch-and-rinse (Adper Scotch Bond Multi Purpose--ASBMP and Adper Single Bond 2--ASB2) and self-etching (AdheSe--AD and Adper Prompt--AP) adhesive systems after short- and long-term water storage. Eighty bovine teeth were randomly assigned to 4 groups (n=20, 10 teeth for 24 h and 10 for 6 months). After surface treatment, composite resin cylinders were made with Tetric Ceram using a bisected metallic matrix. The specimens were stored in distilled water at 37 degrees C for either 24 h or 6 months. After these periods, shear strength was assessed in a universal testing machine (0.5 mm/min). Data were submitted to ANOVA and F test at 5% significance level. Mean SBSs (MPa) for ASBMP (10.03 +/- 3.78) and ASB2 (6.10 +/- 2.67) showed no statistically significant differences (p>0.05) between times. The self-etching systems did not differ significantly from each other within the 24-h period, but significant difference was found for AD (1.37 +/- 0.64) after 6 months of water storage. In conclusion, the tested etch-and-rinse systems had a better performance in terms of bond durability over time than the self-etching systems.
authors.affiliation: Department of Dentistry, State University of Paraíba, Campina Grande, PB, Brazil.
authors.forename: Darlene Cristina Ramos Eloy
authors.initials: DC
authors.lastname: Dantas
authors.forename: Ana Isabella Arruda Meira
authors.initials: AI
authors.lastname: Ribeiro
authors.forename: Lúcia Helena Marques de Almeida
authors.initials: LH
authors.lastname: Lima
authors.forename: Marcelino Guedes
authors.initials: MG
authors.lastname: de Lima
authors.forename: Gymenna Maria Tenório
authors.initials: GM
authors.lastname: Guênes
authors.forename: Ana Karla Souza
authors.initials: AK
authors.lastname: Braz
authors.forename: Rodivan
authors.initials: R
authors.lastname: Braz
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D000180:Acrylic Resins / Q000737:chemistry; D000818:Animals; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002417:Cattle; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D008422:Materials Testing; D010755:Organophosphates / Q000737:chemistry; D011897:Random Allocation; D019279:Resin Cements / Q000737:chemistry; D033081:Shear Strength; D013314:Stress, Mechanical; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry*
chemical_list: D000180:Acrylic Resins; C489662:AdheSE cement; C489661:Adper Prompt Self-Etch; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D010755:Organophosphates; D019279:Resin Cements; C084018:Scotchbond Multi-Purpose; C121818:Tetric ceram; C115612:single bond; D014867:Water; D017438:Bisphenol A-Glycidyl Methacrylate